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No. 750,423.. PATENTBD JAN. 26, 1904.

H. BALLUET.

' DRILLING MACHINE.

AYPLIQATIOK FILED JUNE 18. 1901. N0 MODEL. 3 SHEETS-SHEET 1.

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'PATENTED JAN. 26, 1904.

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H. BALLUET. DRILLING MACHINE.

APPLICATION FILED JUNE 18, 1901. N0 MODEL.

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No. 750,423. PATENTED JAN. 26, 1904.

H. BALLU'ET. I

DRILLING MACHINE.

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UNITE STATES Patented January 26, 1904.

PATENT OFFICE.

HENRI BALLUET, OF NOUZON, FRANCE, ASSIGNOR TO J ULIEN EMILE THOME, OF NOUZON, FRANCE.

DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 750,423, dated January 26, 1904.

Application filed June 18, 1901.

To all whom it may concern:

Be it known that I, HENRI BALLUET, mechanician, of Nouzon, Ardennes, Republic of France, have invented a Drilling-Machine, of which the following is a full, clear, and exact description.

This invention relates to a new kind of handoperated drilling-machine, characterized by the arrangement of adevice enabling the rest or support of the operating-crank to turn one hundred and eighty degrees around the drillholder and to keep this rest at the required rate of inclination in order to facilitate certain works and to allow the tramways to pass when the machine is used for drilling tramway-rails.

My invention will be better understood by the following specification with reference to the accompanying drawings, in which Figure 1 is an elevation of the machine. Fig. 2 is a corresponding plan, and Fig. 3 a vertical section, thereof. Fig. 4 shows the same machine in end view. Fig. 5 is an end view of the bracket 9 with part of the drillholder in section.

In the several figures the same letters of reference denote like parts.

As shown in the drawings, when, for instance, it is desired to bore or drill a hole through the web a of a rail (1, I arrange the round stem 6 under the foot a of the rail in order to clamp this foot between a jaw 0 and another jaw 0Z, such clamping being obtained by means of the screw 0. The stem Z) is provided at its other end with a ring f, having a socket f, in which I thread the rod g, that can be lifted or lowered at will. The rod 9 is provided with a threaded socket g, receiving a tapped head it, in which the drill-holder can turn freely.

The drill-holder carries at the opposite side of the drill j a square '5, with which a pinion 7c is engaged. The pinion 7c gears with a pinion Z, fastened upon a rod m, which also carries the crank 92, whose part n enables to bring the handle a near to or away from the rod on by means of a screw 0, that can be moved in a slot 9. This arrangement also enables to bring down the handle n.

A bridge 9, bearing at one side upon the end maintains the pinionl and the rod m.

Serial No. 65,044. (No model.)

of the drill-holder 2' and at the other side upon a collar 1 made in one with the socket 9", For this purpose a binding-screw s fastens the bridge Q on the collar 9'. The socket r is provided at its lower part with a slot 0'', allowing the socket g to pass.

On going on with the drilling it is only sufficient to carry forward the head it of the drillholder 41. For this purpose the head it is provided with a certain number of holes It, in which any spindle is engaged to shift the head it in the threaded socket When it is required to let a tram-car pass, for instance, the workman loosens the screw .9 and can incline at the right or at the left of the vertical the whole of the crank, so that the tram can pass.

The shifting of the axis m, arranged at right angles to the drill-holder 2', can reach one hundred and eighty degrees. Furthermore, this arrangement enables to bring the crank to a more or less inclined position, according to the requirements of the work, as shown in Fig. 4 of the drawings.

The mobility of the rod 9 within the socket f of the ring f allows the drill to move in such and such a direction, as shown in Fig. 2 of the drawings. The same arrangement also enables to vary the height of the drill j relatively to the axis of the rod Z).

The forms, details, accessories, materials, and sizes of my drilling machine may of course vary without departing from the principle of my invention.

The way in which the drill comes forward as the same advances in the part to be drilled is as follows: The apparatus is first brought close to the work by sliding the same on the stem 6 until the point of the drill enters the hole made with the punch and that shows the place where the hole is to be boredin the part a rail, for example. Then you operate the drill that pierces the work. As drilling is going on you act upon the tapped head it by means of a spindle introduced into one of the holes h of the head it, so that. the said head will come outside the threaded socket g, with the drill j abutting against the part to be drilled when drilling isgoing'on. During this rectilinear motion of the drill-holderz' the square part c" of the same slides within the hub of pinion is, so that the pinion can always operate the drill notwithstanding the displacements of the latter. However, such forward motion is not very great, as the parts to be drilled are not very thick.

I claim- 1. In combination with the drill-holder, a gear-wheel thereon a sleeve or socket also supported on the drill-holder, a second gear meshing therewith, a crank connected with the said second gear, a crank-rest supported on the drill-holder at one end, a sleeve supported on the drill-holder between which and the crank-rest the first-mentioned gear is supported, said sleeve having a collar engaging the crank-rest and means for holding the HENRI BALLUET. Witnesses:

GUNIssE LUOIEN, MAURICE H. PIGNET. 

